The Sikorsky S-55 (ICAO type S55T) is an aircraft of United States origin, certificated in the Helicopter category. It has a maximum take-off weight of 3,200 kg. It offers a maximum range of 350 nm, a cruise speed of 74 knots, a service ceiling of 13,000 ft and seating for up to 12 across its variants.
Sikorsky S-55

Fleet & certification
- Built
- 18
- Active
- 18
- Origin
- United States
Per-variant specifications
The FAA paperwork
TCDS 1H4 · Rev 32 · issued 1989-12-29
- Category
- Helicopter
- MTOW
- 3,266 kg
- Seats
- 2 crew · 7 passengers
- Fuel
- 530 L
P&W Wasp S1H2
Type Certificate No. 1H4 (CAR 6, May 1946)
Where to look next
Sikorsky S-55 market & fleet intelligence
Registry, flight-tracking and market data on the Sikorsky S-55 fleet — updated daily.
71 yearsmedian age
Of the 15 registered Sikorsky S-55 with a known build year (83% of the 18 we track), the median age is 71 years.
What is the range of the Sikorsky S-55?
The Sikorsky S-55 has a maximum range of 350 nautical miles across variants.
How many people can the Sikorsky S-55 carry?
The Sikorsky S-55 seats up to 12 across its variants.
What is the MTOW of the Sikorsky S-55?
The Sikorsky S-55's maximum take-off weight is 3,200 kg.
What is the ICAO type designator for the Sikorsky S-55?
The Sikorsky S-55's ICAO type designator is S55T.
How many Sikorsky S-55 aircraft are registered worldwide?
Sprinkle tracks 18 registered Sikorsky S-55 airframes worldwide.
Registered S-55 aircraft
Individual S-55 airframes by tail number — registration history, operator and lineage.